SoundAway Barrier (11015) Carpet Underlay, wide Roll, 3/8" x 4.5' x 25', combines a layer of soundproofing barrier and a dense, sound-absorbing, and sound-blocking, closed cell foam.  This soundroofing composite decouples two rigid surfaces serving as an isolator, sound barrier,  sound absorber and a fabulous carpet underlay.

SoundAway Barrier (11016) Carpet Underlay, wide miniRoll, 3/8" x 4.5' x 5', combines a layer of soundproofing barrier and a dense, sound-absorbing, and sound-blocking, closed cell foam.  This soundroofing composite decouples two rigid surfaces serving as an isolator, sound barrier,  sound absorber and a fabulous carpet underlay.  Save 10% on a full roll.